JP2003320959A - Vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent falling of an elevating device due to corrosion of a floor plate, etc., by fixing the elevating device on a chassis frame without welding work. <P>SOLUTION: An altitude working car is constituted of a load carrying platform comprising a plurality of cross sills mounted on a pair of the chassis frames 5, 6, extending left and right and arranged with a specified interval in the longitudinal direction and the floor plate mounted on their upper parts, and the elevating device 30 loaded on the floor plate. The elevating device 30 has a pair of masts 31 vertically extending on the outside of a pair of the chassis frames 5, 6, and mounting mounts 41, 42 extending to the rear side of the vehicle are respectively mounted on a pair of the masts 31, and a fixing members 43, 44 are mounted on the mounting mounts 41, 42 in a state where the floor plate is sandwiched between lower surfaces of the mounting mounts 41, 42 and the fixing members 43, 44. A pair of movement regulation members 45, 49 having hooking parts 48, 52 free to respectively hook on a pair of the chassis frames 5, 6 is mounted on lower end parts of the fixing members 43, 44. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle, and more particularly, to a vehicle body having a chassis frame extending in the front-rear direction, and a vehicle body extending in the left-right direction and attached to the chassis frame so as to have a predetermined gap in the front-rear direction. The present invention relates to a vehicle having a cargo bed having a plurality of horizontal joists and a floor board attached to an upper portion of the plurality of lateral joists, and a body mounted on the floor board.

[0002]

2. Description of the Related Art Generally, a vehicle on which a bodywork (for example, a lifting device) can be mounted is constructed based on a truck vehicle, and the truck vehicle extends in the front-rear direction and has a predetermined gap left and right. Many of them are configured to have a pair of chassis frames arranged at the positions that they have.

Here, as a method for fixing the bodywork to the chassis frame, for example, there are methods shown in FIGS. 6 (a) and 6 (b). In the fixing method shown in FIG. 6A, the chassis frame 6 and the mounting body 67 are attached to the outer surfaces of the chassis 67 with the tension brackets 71 facing each other, and the tension brackets 71, 71 are attached with bolts and nuts (not shown). ), And the body 67 is fixed to the chassis frame 6. On the other hand, the fixing method shown in FIG. 6 (b) is for engaging the left and right ends of the floorboard 23 with the left and right ends of the lateral joist 22 which is attached to the upper part of the chassis frame 5 and constitutes a part of the cargo bed. The frame body 69, which is a part of the loading platform having the fitting concave portion 69a, is fixed by the bolt 73 and the nut 74, and the engaging concave portion 6
9a is inserted into the end portion of the floor plate 23 to attach the floor plate 23 to the frame 69.
The floor board 23 is fixed to the lateral joist 22 with bolts (not shown), and the body 68 is fixed to the floor board 23 with bolts 75 or the like to fix the body 68 to the chassis frame 5.

[0004]

However, as shown in FIG.
The chassis frame shown in (a) and the tension brackets attached to each outer surface of the body are often attached by welding. In this case, a welding device and an operator who can perform welding work are required. . In addition, FIG.
When the bodywork is fixed on the floorboard shown in (b) with bolts or the like, when the floorboard is corroded and a force is applied to the bodywork in the lateral direction of the vehicle, the floorboard is deformed so as to peel off. There is a problem that the bodywork may fall down. In particular, when the floorboard is made of wood or the like, the risk of the bodywork falling over is further increased.

The present invention has been made in view of the above problems, and it is possible to fix a bodywork to a chassis frame without performing a welding operation, and to mount the bodywork in a state where the floorboard is corroded or the like. It is an object of the present invention to provide a vehicle in which the bodywork is not likely to fall even if a force in a direction in which it falls is applied.

[0006]

In order to solve the above problems, a vehicle according to the present invention is a vehicle body having a chassis frame extending in the front-rear direction (for example, a truck vehicle 3 in the embodiment) and a vehicle extending in the chassis frame from side to side. A loading platform having a plurality of horizontal joists attached and arranged with a predetermined gap in the front and rear and a floor board attached to the upper part of the plurality of horizontal joists, and an elevating device mounted on the floor board. A vehicle (for example, an aerial work vehicle 1 in the embodiment) having the fixing member, which is disposed between lateral joists adjacent to each other in the front-rear direction and extends to the left and right of the vehicle body, and an elevating device mounted on the floor plate. And a body fixing means (for example, the bolt 55 and the nut 56 in the embodiment) that fixes the lifting device to the fixing member while sandwiching the floor plate between the fixing members.

According to the vehicle having the above structure, since the lifting device is fixed to the fixing member via the floor plate of the loading platform, even if a part of the floor plate between the lifting device and the fixing member is corroded, The lifting device can be kept fixed to the fixing member without being affected by corrosion.

Further, in the vehicle having the above-mentioned structure, a pair of movement restricting members are provided at a lower portion of the fixing member with a predetermined gap left and right, extend downward, and have a hook portion at a lower end thereof, At least one locking portion of the pair of movement restricting members may be locked to either the lower left portion or the lower right portion of the chassis frame to restrict the upward movement of the fixing member.

According to the vehicle having the above structure, by providing the movement restricting member having the hooking portion at the lower end portion at the lower portion of the fixing member, when the fixing member tries to move upward, the hooking portion causes the chassis frame to move. It will be in a state of being hung on. For this reason, the upward movement of the fixing member is restricted, and as a result, even if the lifting device tries to swing in the left-right direction of the vehicle, the upward movement of the fixing member is restricted, and the lifting device is prevented from swinging in the left-right direction. Can be prevented. Further, since the lifting device is attached to the fixed member, and the movement restricting member attached to the fixing member is configured to be hooked on the chassis frame, the lifting device is attached to the chassis frame via the fixing member and the movement restricting member. It is in almost the same state as the indirectly fixed state. As a result, the welding work for attaching the bracket for fixing the lifting device and the chassis frame to these becomes unnecessary, and the welding equipment and the welding operator do not need to be prepared, and the vehicle manufacturing cost can be reduced.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to FIGS. The present embodiment shows a mode of an aerial work vehicle in which a lifting device for vertically moving the work platform is mounted on the front side of the loading platform. As shown in FIG. 1, the aerial work vehicle 1 is configured with a so-called flat-body type truck vehicle 3 as a base, and extends in the front-rear direction and has a pair of chassis frames 5, which are arranged side by side with a predetermined gap therebetween.
A pair of front wheels 7 and a rear wheel 9 are disposed at both front, rear, left and right ends of the vehicle 6, and the vehicle can travel. A driving cabin 11 is provided in front of the pair of chassis frames 5 and 6, and the vehicle is rearward of the driving cabin 11. The loading platform 20 is provided on the pair of chassis frames 5 and 6, and the lifting device 30 is mounted on the front side of the loading platform 20.

First, the lifting device 30 will be outlined. The lifting device 30 will be described with reference to FIG.
It is configured to have a pair of masts 31 which are arranged at both left and right ends of the front end portion of 0 and extend vertically, and a work table 37 which is attached between the pair of masts 31 and 31 so as to be movable up and down. The mast 31 is made of a metallic material, and the first mast 32, the second mast 33, the third mast 34, and the fourth mast 35 are assembled in a nesting manner from the base end side, and can be moved up and down. Second to first mast 32
The mast 33, the third mast 34, and the fourth mast 35 are configured to move up and down. The fourth mast 35 is configured to be housed in the third mast 34 when stored, and the work table 37 is attached to the fourth mast 35. The pair of masts 31, 31 are arranged outside the pair of chassis frames 5, 6 shown in FIG.

As shown in FIG. 1, the work platform 37 is located at a predetermined upper position than the loading platform 20 in a storage posture in which the lifting device 30 is stored on the loading platform 20, and a lifting operation (not shown) provided on the working platform 37. By operating the device, the workbench 37 can be moved to a desired height. The workbench 37 is configured to be foldable, and a pair of masts 31 and 3 can be folded and folded.
It can be stored in one.

The loading platform 20 on which the lifting device 30 constructed as described above is mounted is a so-called flat body having a tilt 21 on the periphery thereof, and a pair of chassis frames 5 and 6 are provided.
A plurality of lateral joists 22 mounted on the upper part in the left-right direction of the vehicle body and arranged with a predetermined gap in the front-rear direction.
And a floor frame (not shown) attached around a basic structure composed of a plurality of horizontal joists 22, a flat floor plate 23 incorporated in the floor frame, left and right end portions of the vehicle, and a rear end portion of the vehicle. It is configured to have the above-described tilt 21 that is attached to the floor frame arranged in the above so as to be swingable up and down. Figure 1
A front stand plate (not shown) protruding upward is attached to the front end portion of the loading platform 20 shown in FIG. 2, and a torii 24 protruding upward is attached to the upper part of the front stand plate. The horizontal joists 22 and the floor board 23 that form the luggage carrier 20 are made of a metal material, and the lateral joists 22 are fixed to the pair of chassis frames 5 and 6 with bolts (not shown), and the floor board 23 also has a plurality of lateral joists 22. It is fixed with bolts (not shown).

The elevating device 30 mounted on the front side of the loading platform 20 constructed as described above is provided with fixing means 40 for fixing and holding the elevating device 30 to the pair of chassis frames 5 and 6. The fixing means 40 is made of a metal material, and as shown in FIG. 3, a pair of first masts 32, 32 are attached to the lower portions of the first masts 32, 32 and extend toward the vehicle rear side along the chassis frames 5, 6. Mounting mounts 41, 42
And a pair of fixing members 43 and 44 mounted in a state of being bridged between the lower surfaces of the pair of mounting mounts 41 and 42 on the base end side and the tip end side, and the left and right end portions of the fixing members 43 and 44. It is configured to have movement restricting members 45 and 49 attached to the lower surface, extending downward, and having hooking portions 48 and 52 at the lower ends.

As shown in FIG. 4, the mounting mounts 41, 42 are rod-shaped members having a rectangular cross section and a hollow interior, and are arranged at a position with a predetermined distance L from the outside of the pair of chassis frames 5, 6. In addition, it is disposed above the horizontal joist 22 attached to the chassis frames 5 and 6. The fixing members 43 and 44 are U-shaped in cross section, and are arranged in a space 53 shown in FIG. 3 formed between the lower surface of the floor plate 23 and the upper surfaces of the chassis frames 5 and 6, and the fixing member 4 is provided.
Both ends of 3, 44 extend to positions below the pair of mounting mounts 41, 42. The vertical dimension H of the fixing members 43, 44 is smaller than that H'of the lateral joist 22, and as a result, the fixing members 43, 44 are attached to the space portion previously described in the truck vehicle 3 on which the loading platform 20 shown in FIG. 1 is mounted. Can be located at 53. The floor plate 23 is in a state in which both ends of the floor plate 23 are sandwiched between the mounting mounts 41 and 42 and the fixing members 43 and 44 on the front side of the loading platform 20 shown in FIG. The fixing members 43 and 44 are inserted and screwed into the nut 56, and the mounting mounts 41 and 42 are fixed to the fixing members 43 and 44 via the floor plate 23.
It is fixed at 44. As a result, the lifting device 30 shown in FIG.
It is integrated with 44. Therefore, if the lifting device 30 shown in FIG.
3, 44 also try to swing in the same direction as the lifting device 30. The floor plate 23 on the vehicle rear side is locked to the frame body and fixed to the lateral joist 22 with bolts or the like as described above.

The movement restricting members 45 and 49 are arranged outside the chassis frames 5 and 6 in the left-right direction and extend vertically, and are attached to the lower ends of the arm parts 47 and 51 and extend inward in the left-right direction. It is configured to have hook portions 48 and 52. Stepped portions 47a, 51a and male screw portions 47b, 51b are formed on the upper portions of the arm portions 47, 51, and the upper portions of the arm portions 47, 51 are inserted through the lower portions of the fixing members 43, 44 to project the stepped portions 47a, 51a. The nut 57 is screwed into the male screw portions 47b and 51b projecting upward from the lower portions of the fixing members 43 and 44 in the contacted state, and the arm portion 4
7, 51 are fixed to the fixing portions 43, 44. The step portions 47a and 51a provided on the arm portions 47 and 51 are the step portion 4
By abutting 7a, 51a on the lower portions of the fixing members 43, 44, the hooking portions 48, 52 can be positioned in the vertical direction with respect to the fixing members 43, 44, and as a result, the hooking portions 48, 52 to be described later. Of the chassis frames 5 and 6 can be positioned below the lower surfaces of the chassis frames 5 and 6 with a predetermined gap.

The hooking portions 48, 52 are plate-shaped, and have horizontal abutting portions 48a, 52a protruding horizontally from the lower ends of the arm portions 47, 51, and upward from the tips of the horizontal abutting portions 48a, 52a. It is configured to have tip projecting portions 48b and 52b that project inward. The horizontal length B of the horizontal abutment is longer than that B ′ of the chassis frames 5, 6 and, as a result,
When the hook portions 48 and 52 are located below the chassis frames 5 and 6, the above-mentioned gap is formed between the upper surfaces of the horizontal contact portions 48a and 52a and the lower surfaces of the chassis frames 5 and 6. The lower portions of the chassis frames 5 and 6 are housed inside the tip protruding portions 48b and 52b (on the side of the arm portions 47 and 51). The height dimension C of the vertical direction of the tip protrusions 48b and 52b is a predetermined distance above the lower portions of the chassis frames 5 and 6 when the hooking portions 48 and 52 are located below the chassis frames 5 and 6. It has a size so as to project to a position having a. As a result, when the fixing members 43 and 44 move upward with respect to the chassis frames 5 and 6, the upper surfaces of the horizontal contact portions 48a and 52a of the latching portions 48 and 52 contact the lower portions of the chassis frames 5 and 6, and When the fixing members 43, 44 move in the left-right direction, the hooking portions 48, 5
2, the tip projections 48b and 52b of the chassis frame 5 and 6
The fixing members 43 and 44 are restricted from moving by contacting the lower part of the.

According to the aerial work vehicle 1 having the above-described structure, as shown in FIG. 1, the work table 37 is moved to a desired work position at a high place, or the work table 37 is stored in the masts 31, 31. Then, for example, when the vehicle moves to the ground inclined in the left-right direction or the ground having unevenness, the lifting device 30 tilts in the vehicle left-right direction. Here, FIG. 5 shows an example when the vehicle leans to the left side. As shown in FIG. 5, when the vehicle leans to the left side, the pair of chassis frames 5 and 6 leans to the left side of the vehicle. 22 is also inclined at the same angle as the angle of inclination of the pair of chassis frames 5, 6. Then, the lifting device 30 shown in FIG. 1 also leans to the left side of the vehicle through the floor plate 23 attached to the lateral joist 22. Here, when the inclination angle is large or when the vertical position of the workbench 37 shown in FIG. 1 is at a high position, a force is exerted on the elevating device 30 in the direction of tipping the elevating device 30 to the left side of the vehicle.

Therefore, if the lifting device 30 tries to lean toward the left side of the vehicle due to this force, the lifting device 30
The fixing members 43 and 44 integrated with the above are further inclined to pull up the movement restricting member 49 arranged on the right side of the vehicle. As a result, the hooking portion 52 of the movement restricting member 49 comes into contact with the lower portion of the chassis frame 6 disposed on the right side of the vehicle and is hooked, and the inclination of the fixing members 43 and 44 is restricted, so that FIG. It is possible to prevent the situation where the lifting device 30 shown in FIG.

Further, the mounting mounts 41 and 42 integrated with the lifting device 30 shown in FIG. 1 are fixed to the fixing members 43 and 44 through the floor plate 23 which is a part of the luggage carrier 20 shown in FIG. , Mounting mounts 41, 42 and fixing member 4
Even if the floor plate 23 interposed between the 3 and 44 is corroded,
The lifting device 30 can be maintained in a state of being fixed to the fixing members 43 and 44. Therefore, the lifting device 30 does not fall down due to the corrosion of the floor plate 23 or the like.

Further, in the elevating device 30 shown in FIG. 1, as described above, the lateral movement and vertical movement of the vehicle are restricted by the movement restricting members 45 and 49 of the fixing means 40. It is substantially in the same state as it is fixed to the chassis frames 5, 6. For this reason, in order to fix the lifting device 30 to the chassis frames 5, 6, the
Compared with the case where the tension brackets 71 are attached by welding and are fixed to each other to fix the lifting device 30 to the chassis frames 5 and 6 as shown in (a), in the aerial work vehicle 1 according to the present invention. The lifting device 30 can be fixed to the chassis frames 5 and 6 without performing welding work. Therefore, a welding device and an operator who can perform welding work are not required, and the work cost for attaching the lifting device 30 to the vehicle can be reduced.

In the above-described embodiment, as shown in FIG. 4, the movement restricting members 45 and 49 are fixed to the fixing members 43 and 44 so that the hook portions 48 and 52 are directed from the outside to the inside of the vehicle.
The movement restricting members 45 and 49 are fixed so that the hooking portions 48 and 52 are directed from the inside to the outside of the vehicle.
It may be attached to 3, 44.

[0023]

As described above, according to the vehicle of the present invention, the fixing member extending laterally of the vehicle body is provided between the lateral joists adjacent to the front and rear, and the lifting device and the fixing member mounted on the floor board. Fixing the lifting device to the fixing member even if part of the floor plate between the lifting device and the fixing member is corroded by providing the body fixing means for fixing the lifting device to the fixing member with the floor plate sandwiched between them. Can be maintained in

Further, by providing a pair of movement restricting members each having a hooking portion at the lower end thereof at the lower portion of the fixing member, when the fixing member moves upward, the hooking portion is hooked on the chassis frame. become. For this reason, the upward movement of the fixing member is restricted, and as a result, the upward movement of the lifting member is restricted even if the lifting device tries to swing in the left-right direction of the vehicle, preventing the lifting device from swinging in the left-right direction. can do. Further, since the lifting device is attached to the fixed member, and the movement restricting member attached to the fixing member is configured to be hooked on the chassis frame, the lifting device is attached to the chassis frame via the fixing member and the movement restricting member. It is in almost the same state as the indirectly fixed state. As a result, the welding work for attaching the bracket for fixing the lifting device and the chassis frame to these becomes unnecessary, and the welding equipment and the welding operator do not need to be prepared, and the vehicle manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a left side view of an aerial work vehicle according to an embodiment of the present invention.

FIG. 2 is a perspective view of an elevating device mounted on an aerial work vehicle according to an embodiment of the present invention.

FIG. 3 shows a fixing means attached to the lifting device according to the embodiment of the present invention.

FIG. 4 shows a fixing means according to an embodiment of the present invention.

FIG. 5 shows a rear view of the fixing means seen from the vehicle rear side for explaining the operation of the fixing means in the embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a method for attaching a body mounted on a conventional work platform for aerial work to a chassis frame.

[Explanation of symbols]

1 Aerial work vehicle (vehicle) 3 truck vehicles (body) 5, 6 chassis frame 20 loading platform 22 Yokota 23 Floorboard 30 Lifting device 43,44 fixing member 45, 49 Movement restriction member 48, 52 Hook 55 bolts (fixing means for bodywork) 56 Nut (Means for fixing bodywork)

Continued front page    (72) Inventor Hidehiko Yoshida             1015 1152 Yamashita, Ryoke, Ageo City, Saitama Prefecture               Aichi Corporation Ageo Kogyo             Inside the hall F-term (reference) 3D003 AA02 BB09 BB11 CA18

Claims (2)

[Claims] 1. A vehicle body having a chassis frame extending in the front-rear direction, a plurality of lateral joists that are attached to the chassis frame so as to extend in the left-right direction and are arranged with a predetermined gap in the front-rear direction, and a plurality of lateral joists. A vehicle having a loading platform having a floor plate attached to an upper part and an elevating device mounted on the floor plate, the vehicle being disposed between the lateral joists adjacent to each other in the front and rear. A fixing member extending to the left and right; and a body fixing means for fixing the lifting device to the fixing member with the floor plate being sandwiched between the lifting device and the fixing member mounted on the floor plate. A vehicle characterized by being configured. 2. A pair of movement regulating members, which are disposed below the fixing member with a predetermined gap on the left and right sides and extend downward, and which have a hooking portion at a lower end portion thereof. At least one of the locking portions of the member is configured to be locked to either the lower left portion or the lower right portion of the chassis frame to restrict upward movement of the fixing member. The vehicle according to claim 1.